Experiment and mechanism of dynamic drag reduction in pipeline transportation

来源期刊：中国有色金属学报(英文版)2000年第4期

论文作者：吴爱祥 古德生 胡华

文章页码：548 - 550

Key words：pipeline transportation; dynamic drag reduction; mechanism

Abstract: Based on the analysis of the disadvantages of traditional methods in reducing pipeline resistance, the new conception of dynamic drag reduction in pipeline transportation has been proposed. The experimental results and mechanism of dynamic reduction of pipeline resistance were also discussed in detail. The main conclusion is that the dynamic reduction of resistance exerts forces on the moving materials along both the radial direction and the axial direction. The radial force throws the materials upwards to depart from the pipe wall to reduce the frictional force, while the axial force directly reduces the resistance by providing the force to overcome the drag.